ArticleScientific reports2025
Tracing the signatures of ozone recovery in the Arctic ozone.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
We examine the long-term trends in Arctic stratospheric ozone using satellite, ozonesonde and ground-based measurements for the period 1988-2024. Our analysis reveals statistically significant positive trends (up to 0.915 ± 0.251%/dec) in the upper stratospheric ozone (5-1 hPa) with the Stratospheric Water and Ozone Satellite Homogenized (SWOOSH) and the merged satellite (SAGE-CCI-OMPS) data. The assessment of total column ozone (TCO) also shows significant positive trends in the merged satellite (8.51 ± 6.03 DU/dec) and ground-based (6.51 ± 3.88 DU/dec) measurements in 2000-2024. In addition, the combined ground-based data reveal significant positive trends in the southern Arctic stations (Lerwick, Scoresbysund, Sodankylä, Churchill, Andøya and Oslo) in autumn (9.11 ± 2.38 DU/dec) and spring (6.24 ± 4.71 DU/dec). The analysis for different post-2000 periods finds a high impact of the unprecedented ozone depletion event of 2020 on the estimated trends. However, the selected four stations still show positive trends in 2000-2024. Though the TCO measurements yield significant positive trends, the vertical profiles yet to show any recovery signature in the lower stratosphere.
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